Secondary metabolites and their biological activities in Indonesian soft coral of the genus Lobophytum

Objective To investigate the antioxidant, antibacterial, antimalarial activities and cytotoxicity of the n-hexane, ethyl acetate, n-butanol, and aqueous fractions from a crude extract of Lobophytum sp. Methods This organism was collected from the Selayar Islands (South Sulawesi). The antioxidant activity was performed by the 1,1-diphenyl-2-picryl hydrazyl radical scavenging method. All fractions from the crude extract of Lobophytum sp. were examined for their cytotoxicity using the brine shrimp lethality bioassay and heme polymerization inhibitory activity assay for antimalarial activity. Results It was found that the ethyl acetate, n-butanol and aqueous fractions exhibited heme polymerization inhibitory activity with IC